Comprises:
- D1, File of Prinz's German and British patents. British patents, 1937-45, cover, inter alia, improvements in mercury arc electric converters; improvements in electric voltage measuring instruments. German patents are dated 1932-4, and a list of Prinz's German patents is appended;
- D2, Offprints of articles authored by Prinz, c 1939-50s. These include, inter aliaClass C Telegraphy, Wireless Engineer, vol. 19 (September 1942); Contributions to the Theory of Automatic Controllers and Followers, Journal of Scientific Instruments, vol. 21 (April 1944); (with W. Mays) A Relay Machine for the Demonstration of Symbolic Logic, Nature (1950); Robot Chess, Research, vol. 6 (1952).